/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:12:14,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:12:14,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:12:14,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:12:14,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:12:14,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:12:14,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:12:14,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:12:14,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:12:14,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:12:14,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:12:14,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:12:14,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:12:14,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:12:14,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:12:14,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:12:14,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:12:14,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:12:14,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:12:14,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:12:14,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:12:14,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:12:14,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:12:14,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:12:14,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:12:14,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:12:14,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:12:14,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:12:14,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:12:14,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:12:14,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:12:14,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:12:14,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:12:14,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:12:14,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:12:14,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:12:14,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:12:14,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:12:14,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:12:14,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:12:14,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:12:14,942 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:12:14,963 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:12:14,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:12:14,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:12:14,969 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:12:14,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:12:14,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:12:14,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:12:14,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:12:14,971 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:12:14,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:12:14,971 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:12:14,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:12:14,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:12:14,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:12:14,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:12:14,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:12:14,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:12:14,972 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:12:14,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:12:14,973 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:12:14,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:12:14,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:12:14,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:12:14,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:12:14,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:12:14,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:12:14,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:12:14,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:12:14,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:12:14,975 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:12:15,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:12:15,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:12:15,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:12:15,214 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:12:15,214 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:12:15,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2023-03-31 01:12:16,433 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:12:16,636 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:12:16,636 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2023-03-31 01:12:16,646 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a55f3342/3ba055a92f2f48918d241ad1fc2945ca/FLAGe7a617a33 [2023-03-31 01:12:16,658 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a55f3342/3ba055a92f2f48918d241ad1fc2945ca [2023-03-31 01:12:16,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:12:16,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:12:16,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:12:16,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:12:16,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:12:16,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:12:16" (1/1) ... [2023-03-31 01:12:16,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa52062 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:16, skipping insertion in model container [2023-03-31 01:12:16,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:12:16" (1/1) ... [2023-03-31 01:12:16,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:12:16,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:12:16,926 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2023-03-31 01:12:16,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:12:16,975 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:12:17,053 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2023-03-31 01:12:17,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:12:17,091 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:12:17,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17 WrapperNode [2023-03-31 01:12:17,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:12:17,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:12:17,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:12:17,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:12:17,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,175 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:12:17,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:12:17,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:12:17,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:12:17,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (1/1) ... [2023-03-31 01:12:17,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:12:17,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:12:17,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 01:12:17,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 01:12:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:12:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:12:17,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 01:12:17,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 01:12:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 01:12:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 01:12:17,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 01:12:17,255 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 01:12:17,256 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 01:12:17,257 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:12:17,258 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 01:12:17,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 01:12:17,260 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-03-31 01:12:17,261 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-03-31 01:12:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 01:12:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 01:12:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-03-31 01:12:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:12:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:12:17,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:12:17,405 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:12:17,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:12:18,027 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:12:18,037 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:12:18,037 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 01:12:18,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:12:18 BoogieIcfgContainer [2023-03-31 01:12:18,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:12:18,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:12:18,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:12:18,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:12:18,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:12:16" (1/3) ... [2023-03-31 01:12:18,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e127887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:12:18, skipping insertion in model container [2023-03-31 01:12:18,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:12:17" (2/3) ... [2023-03-31 01:12:18,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e127887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:12:18, skipping insertion in model container [2023-03-31 01:12:18,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:12:18" (3/3) ... [2023-03-31 01:12:18,050 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2023-03-31 01:12:18,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:12:18,080 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:12:18,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:12:18,141 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19a94c8a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:12:18,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:12:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 110 states have (on average 1.3) internal successors, (143), 125 states have internal predecessors, (143), 53 states have call successors, (53), 32 states have call predecessors, (53), 32 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2023-03-31 01:12:18,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-03-31 01:12:18,155 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:18,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:18,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:18,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:18,160 INFO L85 PathProgramCache]: Analyzing trace with hash -909256292, now seen corresponding path program 1 times [2023-03-31 01:12:18,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:18,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074290246] [2023-03-31 01:12:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:18,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 01:12:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-03-31 01:12:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:18,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:18,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:18,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074290246] [2023-03-31 01:12:18,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074290246] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:18,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:18,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 01:12:18,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118620009] [2023-03-31 01:12:18,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:18,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 01:12:18,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:18,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 01:12:18,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:12:18,552 INFO L87 Difference]: Start difference. First operand has 198 states, 110 states have (on average 1.3) internal successors, (143), 125 states have internal predecessors, (143), 53 states have call successors, (53), 32 states have call predecessors, (53), 32 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:12:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:19,143 INFO L93 Difference]: Finished difference Result 344 states and 448 transitions. [2023-03-31 01:12:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 01:12:19,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 51 [2023-03-31 01:12:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:19,154 INFO L225 Difference]: With dead ends: 344 [2023-03-31 01:12:19,155 INFO L226 Difference]: Without dead ends: 190 [2023-03-31 01:12:19,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:12:19,162 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 214 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:19,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 63 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:12:19,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-03-31 01:12:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 155. [2023-03-31 01:12:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 103 states have internal predecessors, (114), 38 states have call successors, (38), 30 states have call predecessors, (38), 25 states have return successors, (33), 27 states have call predecessors, (33), 33 states have call successors, (33) [2023-03-31 01:12:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2023-03-31 01:12:19,230 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 51 [2023-03-31 01:12:19,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:19,230 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2023-03-31 01:12:19,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:12:19,231 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2023-03-31 01:12:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-03-31 01:12:19,233 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:19,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:12:19,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:19,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1720776849, now seen corresponding path program 1 times [2023-03-31 01:12:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176071986] [2023-03-31 01:12:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:19,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:12:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:12:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:19,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:19,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:19,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176071986] [2023-03-31 01:12:19,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176071986] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:19,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:19,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:12:19,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932236714] [2023-03-31 01:12:19,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:19,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 01:12:19,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:19,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 01:12:19,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-03-31 01:12:19,360 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:12:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:19,869 INFO L93 Difference]: Finished difference Result 289 states and 359 transitions. [2023-03-31 01:12:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:12:19,870 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-03-31 01:12:19,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:19,879 INFO L225 Difference]: With dead ends: 289 [2023-03-31 01:12:19,879 INFO L226 Difference]: Without dead ends: 180 [2023-03-31 01:12:19,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:12:19,883 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 236 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:19,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 38 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:12:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-03-31 01:12:19,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 146. [2023-03-31 01:12:19,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 85 states have (on average 1.2588235294117647) internal successors, (107), 97 states have internal predecessors, (107), 35 states have call successors, (35), 29 states have call predecessors, (35), 25 states have return successors, (31), 25 states have call predecessors, (31), 31 states have call successors, (31) [2023-03-31 01:12:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2023-03-31 01:12:19,916 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2023-03-31 01:12:19,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:19,917 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2023-03-31 01:12:19,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 01:12:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2023-03-31 01:12:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-03-31 01:12:19,919 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:19,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:19,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:12:19,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:19,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1176595280, now seen corresponding path program 1 times [2023-03-31 01:12:19,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:19,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614175670] [2023-03-31 01:12:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:19,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:12:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-03-31 01:12:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:20,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:20,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614175670] [2023-03-31 01:12:20,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614175670] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:20,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:20,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:12:20,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592589488] [2023-03-31 01:12:20,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:20,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:12:20,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:20,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:12:20,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:12:20,190 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 01:12:20,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:20,891 INFO L93 Difference]: Finished difference Result 298 states and 374 transitions. [2023-03-31 01:12:20,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:12:20,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 56 [2023-03-31 01:12:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:20,896 INFO L225 Difference]: With dead ends: 298 [2023-03-31 01:12:20,896 INFO L226 Difference]: Without dead ends: 180 [2023-03-31 01:12:20,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:12:20,904 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 251 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:20,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 49 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:12:20,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-03-31 01:12:20,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 146. [2023-03-31 01:12:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 96 states have internal predecessors, (106), 35 states have call successors, (35), 29 states have call predecessors, (35), 25 states have return successors, (31), 25 states have call predecessors, (31), 31 states have call successors, (31) [2023-03-31 01:12:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2023-03-31 01:12:20,941 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 56 [2023-03-31 01:12:20,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:20,942 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2023-03-31 01:12:20,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 6 states have internal predecessors, (34), 4 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 01:12:20,942 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2023-03-31 01:12:20,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-03-31 01:12:20,944 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:20,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:20,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:12:20,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:20,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:20,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1000154329, now seen corresponding path program 1 times [2023-03-31 01:12:20,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:20,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101301940] [2023-03-31 01:12:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:12:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 01:12:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 01:12:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:21,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:21,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101301940] [2023-03-31 01:12:21,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101301940] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:21,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:21,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 01:12:21,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448119609] [2023-03-31 01:12:21,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:21,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 01:12:21,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:21,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 01:12:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:12:21,216 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-03-31 01:12:21,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:21,875 INFO L93 Difference]: Finished difference Result 403 states and 508 transitions. [2023-03-31 01:12:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:12:21,876 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 74 [2023-03-31 01:12:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:21,879 INFO L225 Difference]: With dead ends: 403 [2023-03-31 01:12:21,879 INFO L226 Difference]: Without dead ends: 285 [2023-03-31 01:12:21,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:12:21,888 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 402 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:21,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 121 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:12:21,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-03-31 01:12:21,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 239. [2023-03-31 01:12:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 144 states have (on average 1.2083333333333333) internal successors, (174), 153 states have internal predecessors, (174), 47 states have call successors, (47), 43 states have call predecessors, (47), 47 states have return successors, (53), 47 states have call predecessors, (53), 43 states have call successors, (53) [2023-03-31 01:12:21,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 274 transitions. [2023-03-31 01:12:21,966 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 274 transitions. Word has length 74 [2023-03-31 01:12:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:21,966 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 274 transitions. [2023-03-31 01:12:21,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 4 states have call successors, (18), 6 states have call predecessors, (18), 4 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-03-31 01:12:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 274 transitions. [2023-03-31 01:12:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 01:12:21,968 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:21,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:21,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:12:21,969 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:21,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1782729833, now seen corresponding path program 1 times [2023-03-31 01:12:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:21,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483254694] [2023-03-31 01:12:21,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:21,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:12:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:12:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:12:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:22,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:22,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483254694] [2023-03-31 01:12:22,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483254694] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:22,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:22,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:12:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696453734] [2023-03-31 01:12:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:22,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:12:22,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:12:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:12:22,193 INFO L87 Difference]: Start difference. First operand 239 states and 274 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:12:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:23,223 INFO L93 Difference]: Finished difference Result 708 states and 878 transitions. [2023-03-31 01:12:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-31 01:12:23,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 88 [2023-03-31 01:12:23,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:23,230 INFO L225 Difference]: With dead ends: 708 [2023-03-31 01:12:23,231 INFO L226 Difference]: Without dead ends: 497 [2023-03-31 01:12:23,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-03-31 01:12:23,232 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 488 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:23,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 105 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-03-31 01:12:23,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-03-31 01:12:23,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 426. [2023-03-31 01:12:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 259 states have (on average 1.1891891891891893) internal successors, (308), 276 states have internal predecessors, (308), 81 states have call successors, (81), 73 states have call predecessors, (81), 85 states have return successors, (99), 85 states have call predecessors, (99), 77 states have call successors, (99) [2023-03-31 01:12:23,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 488 transitions. [2023-03-31 01:12:23,326 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 488 transitions. Word has length 88 [2023-03-31 01:12:23,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:23,327 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 488 transitions. [2023-03-31 01:12:23,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:12:23,327 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 488 transitions. [2023-03-31 01:12:23,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 01:12:23,331 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:23,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:23,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:12:23,332 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:23,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:23,333 INFO L85 PathProgramCache]: Analyzing trace with hash -5638395, now seen corresponding path program 1 times [2023-03-31 01:12:23,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:23,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486411526] [2023-03-31 01:12:23,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:23,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:12:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:12:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 01:12:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:12:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:23,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:23,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486411526] [2023-03-31 01:12:23,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486411526] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:23,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:23,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:12:23,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664406454] [2023-03-31 01:12:23,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:23,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:12:23,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:23,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:12:23,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:12:23,598 INFO L87 Difference]: Start difference. First operand 426 states and 488 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-03-31 01:12:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:24,573 INFO L93 Difference]: Finished difference Result 930 states and 1135 transitions. [2023-03-31 01:12:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 01:12:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 92 [2023-03-31 01:12:24,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:24,578 INFO L225 Difference]: With dead ends: 930 [2023-03-31 01:12:24,578 INFO L226 Difference]: Without dead ends: 532 [2023-03-31 01:12:24,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2023-03-31 01:12:24,580 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 595 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:24,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 163 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:12:24,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-03-31 01:12:24,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 425. [2023-03-31 01:12:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 258 states have (on average 1.182170542635659) internal successors, (305), 275 states have internal predecessors, (305), 81 states have call successors, (81), 73 states have call predecessors, (81), 85 states have return successors, (99), 85 states have call predecessors, (99), 77 states have call successors, (99) [2023-03-31 01:12:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 485 transitions. [2023-03-31 01:12:24,628 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 485 transitions. Word has length 92 [2023-03-31 01:12:24,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:24,629 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 485 transitions. [2023-03-31 01:12:24,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-03-31 01:12:24,629 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 485 transitions. [2023-03-31 01:12:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-03-31 01:12:24,634 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:24,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:24,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:12:24,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:24,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:24,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1861052096, now seen corresponding path program 1 times [2023-03-31 01:12:24,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:24,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528831264] [2023-03-31 01:12:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:24,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:12:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:12:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:12:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:12:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:12:24,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528831264] [2023-03-31 01:12:24,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528831264] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:24,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:24,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:12:24,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17643686] [2023-03-31 01:12:24,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:24,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:12:24,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:12:24,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:12:24,896 INFO L87 Difference]: Start difference. First operand 425 states and 485 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-03-31 01:12:25,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:25,713 INFO L93 Difference]: Finished difference Result 937 states and 1168 transitions. [2023-03-31 01:12:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:12:25,714 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2023-03-31 01:12:25,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:25,717 INFO L225 Difference]: With dead ends: 937 [2023-03-31 01:12:25,717 INFO L226 Difference]: Without dead ends: 540 [2023-03-31 01:12:25,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-03-31 01:12:25,719 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 214 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:25,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 98 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 01:12:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-03-31 01:12:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 435. [2023-03-31 01:12:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 266 states have (on average 1.1766917293233083) internal successors, (313), 283 states have internal predecessors, (313), 81 states have call successors, (81), 73 states have call predecessors, (81), 87 states have return successors, (101), 87 states have call predecessors, (101), 77 states have call successors, (101) [2023-03-31 01:12:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 495 transitions. [2023-03-31 01:12:25,791 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 495 transitions. Word has length 108 [2023-03-31 01:12:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:25,792 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 495 transitions. [2023-03-31 01:12:25,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (24), 6 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-03-31 01:12:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 495 transitions. [2023-03-31 01:12:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-03-31 01:12:25,796 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:25,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:25,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:12:25,796 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:25,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash 78109950, now seen corresponding path program 1 times [2023-03-31 01:12:25,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:25,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092451898] [2023-03-31 01:12:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:25,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:12:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:12:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:12:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:12:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:12:26,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:26,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092451898] [2023-03-31 01:12:26,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092451898] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:26,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:26,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 01:12:26,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760359685] [2023-03-31 01:12:26,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:26,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 01:12:26,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:26,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 01:12:26,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-03-31 01:12:26,074 INFO L87 Difference]: Start difference. First operand 435 states and 495 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2023-03-31 01:12:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:27,057 INFO L93 Difference]: Finished difference Result 957 states and 1190 transitions. [2023-03-31 01:12:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:12:27,057 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 108 [2023-03-31 01:12:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:27,060 INFO L225 Difference]: With dead ends: 957 [2023-03-31 01:12:27,060 INFO L226 Difference]: Without dead ends: 550 [2023-03-31 01:12:27,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-03-31 01:12:27,062 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 305 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:27,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 108 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:12:27,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-03-31 01:12:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 443. [2023-03-31 01:12:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 272 states have (on average 1.1727941176470589) internal successors, (319), 289 states have internal predecessors, (319), 81 states have call successors, (81), 73 states have call predecessors, (81), 89 states have return successors, (103), 89 states have call predecessors, (103), 77 states have call successors, (103) [2023-03-31 01:12:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 503 transitions. [2023-03-31 01:12:27,148 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 503 transitions. Word has length 108 [2023-03-31 01:12:27,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:27,151 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 503 transitions. [2023-03-31 01:12:27,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (24), 6 states have call predecessors, (24), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2023-03-31 01:12:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 503 transitions. [2023-03-31 01:12:27,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-03-31 01:12:27,153 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:27,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:27,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:12:27,153 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:27,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:27,153 INFO L85 PathProgramCache]: Analyzing trace with hash 847279965, now seen corresponding path program 1 times [2023-03-31 01:12:27,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:27,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558800351] [2023-03-31 01:12:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:27,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 01:12:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:12:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-03-31 01:12:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-03-31 01:12:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:12:27,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:27,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558800351] [2023-03-31 01:12:27,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558800351] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:27,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:12:27,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:12:27,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171126937] [2023-03-31 01:12:27,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:27,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:12:27,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:12:27,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:12:27,386 INFO L87 Difference]: Start difference. First operand 443 states and 503 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 4 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-03-31 01:12:28,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:28,414 INFO L93 Difference]: Finished difference Result 1296 states and 1667 transitions. [2023-03-31 01:12:28,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 01:12:28,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 4 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 108 [2023-03-31 01:12:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:28,418 INFO L225 Difference]: With dead ends: 1296 [2023-03-31 01:12:28,418 INFO L226 Difference]: Without dead ends: 881 [2023-03-31 01:12:28,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:12:28,421 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 988 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:28,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 162 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:12:28,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2023-03-31 01:12:28,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 749. [2023-03-31 01:12:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 474 states have (on average 1.1645569620253164) internal successors, (552), 503 states have internal predecessors, (552), 135 states have call successors, (135), 127 states have call predecessors, (135), 139 states have return successors, (194), 137 states have call predecessors, (194), 131 states have call successors, (194) [2023-03-31 01:12:28,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 881 transitions. [2023-03-31 01:12:28,507 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 881 transitions. Word has length 108 [2023-03-31 01:12:28,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:28,507 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 881 transitions. [2023-03-31 01:12:28,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 4 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-03-31 01:12:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 881 transitions. [2023-03-31 01:12:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-03-31 01:12:28,509 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:28,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:28,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-03-31 01:12:28,509 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:28,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash 780246679, now seen corresponding path program 1 times [2023-03-31 01:12:28,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:28,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106207496] [2023-03-31 01:12:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:28,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:12:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:12:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-03-31 01:12:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:12:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 01:12:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:28,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:12:28,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:28,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106207496] [2023-03-31 01:12:28,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106207496] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:12:28,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158335607] [2023-03-31 01:12:28,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:28,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:12:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:12:28,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:12:28,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 01:12:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:29,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-31 01:12:29,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:12:29,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:12:29,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 01:12:29,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158335607] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:29,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 01:12:29,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2023-03-31 01:12:29,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968165154] [2023-03-31 01:12:29,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:29,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:12:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:29,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:12:29,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:12:29,289 INFO L87 Difference]: Start difference. First operand 749 states and 881 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:12:29,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:29,607 INFO L93 Difference]: Finished difference Result 1433 states and 1697 transitions. [2023-03-31 01:12:29,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 01:12:29,608 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) Word has length 112 [2023-03-31 01:12:29,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:29,611 INFO L225 Difference]: With dead ends: 1433 [2023-03-31 01:12:29,611 INFO L226 Difference]: Without dead ends: 712 [2023-03-31 01:12:29,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:12:29,616 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 92 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:29,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 1323 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 01:12:29,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-03-31 01:12:29,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2023-03-31 01:12:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 451 states have (on average 1.1507760532150777) internal successors, (519), 479 states have internal predecessors, (519), 130 states have call successors, (130), 122 states have call predecessors, (130), 130 states have return successors, (173), 128 states have call predecessors, (173), 126 states have call successors, (173) [2023-03-31 01:12:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 822 transitions. [2023-03-31 01:12:29,711 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 822 transitions. Word has length 112 [2023-03-31 01:12:29,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:29,711 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 822 transitions. [2023-03-31 01:12:29,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (19), 5 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 01:12:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 822 transitions. [2023-03-31 01:12:29,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-03-31 01:12:29,714 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:12:29,714 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:12:29,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 01:12:29,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-31 01:12:29,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:12:29,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:12:29,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1059684892, now seen corresponding path program 1 times [2023-03-31 01:12:29,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:12:29,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821546163] [2023-03-31 01:12:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:29,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:12:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:12:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:12:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:12:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:12:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:12:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:12:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-03-31 01:12:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:12:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:12:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:12:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:12:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:12:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-03-31 01:12:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 01:12:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:12:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:12:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:12:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-03-31 01:12:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-03-31 01:12:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-03-31 01:12:30,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:12:30,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821546163] [2023-03-31 01:12:30,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821546163] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:12:30,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876245344] [2023-03-31 01:12:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:12:30,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:12:30,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:12:30,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 01:12:30,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 01:12:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:12:30,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-31 01:12:30,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:12:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 01:12:30,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 01:12:30,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876245344] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:12:30,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 01:12:30,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 24 [2023-03-31 01:12:30,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2346945] [2023-03-31 01:12:30,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:12:30,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:12:30,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:12:30,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:12:30,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:12:30,620 INFO L87 Difference]: Start difference. First operand 712 states and 822 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (31), 5 states have call predecessors, (31), 3 states have call successors, (31) [2023-03-31 01:12:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:12:30,852 INFO L93 Difference]: Finished difference Result 1190 states and 1396 transitions. [2023-03-31 01:12:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 01:12:30,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (31), 5 states have call predecessors, (31), 3 states have call successors, (31) Word has length 181 [2023-03-31 01:12:30,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:12:30,854 INFO L225 Difference]: With dead ends: 1190 [2023-03-31 01:12:30,854 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 01:12:30,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:12:30,857 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 79 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:12:30,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1053 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 01:12:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 01:12:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 01:12:30,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 01:12:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 01:12:30,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2023-03-31 01:12:30,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:12:30,859 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 01:12:30,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (31), 5 states have call predecessors, (31), 3 states have call successors, (31) [2023-03-31 01:12:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 01:12:30,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 01:12:30,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 01:12:30,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 01:12:31,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-03-31 01:12:31,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.